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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (3): 871-883.DOI: 10.16552/j.cnki.issn1001-1625.2025.0961

• 玻璃本构与模拟计算 • 上一篇    下一篇

Bi/Zn和B/Zn对真空玻璃激光封接用BiBZn系统低熔点玻璃结构与性能的影响

何哲1,2(), 李璟玮2, 马瑄2, 石丽芬1, 焦金旭1, 周俊洁1, 王巍巍1, 李常青1, 王鹏1, 彭寿1,2, 李宏2()   

  1. 1.中建材玻璃新材料研究院集团有限公司,先进玻璃材料全国重点实验室,蚌埠 233018
    2.武汉理工大学,先进玻璃材料全国重点实验室,武汉 430070
  • 收稿日期:2025-09-30 修订日期:2025-12-17 出版日期:2026-03-20 发布日期:2026-04-10
  • 通信作者: 李 宏,博士,研究员。E-mail:lh_648@whut.edu.cn
  • 作者简介:何 哲(1997—),男,博士研究生。主要从事真空玻璃封接用低熔点玻璃的研究。E-mail:18372831961@163.com
  • 基金资助:
    国家自然科学基金(52472012);硅基材料安徽省实验室开放项目(2022KF11);中建材玻璃新材料研究院集团有限公司开放项目(K24556)

Effects of Bi/Zn and B/Zn on Structure and Properties of Low-Melting-Point Glass of BiBZn System for Laser Sealing of Vacuum Glazing

HE Zhe1,2(), LI Jingwei2, MA Xuan2, SHI Lifen1, JIAO Jinxu1, ZHOU Junjie1, WANG Weiwei1, LI Changqing1, WANG Peng1, PENG Shou1,2, LI Hong2()   

  1. 1.State Key Laboratory of Advanced Glass Materials,CNBM Research Institute for Advanced Glass;Materials Group Co. ,Ltd. ,Bengbu 233018,China
    2.State Key Laboratory of Advanced Glass Materials,Wuhan University of Technology,Wuhan 430070,China
  • Received:2025-09-30 Revised:2025-12-17 Published:2026-03-20 Online:2026-04-10

摘要:

激光封接技术是一种高精度、高效率的现代焊接技术,具有能量密度高和可局部加热的优点。将激光封接技术应用于真空玻璃封接,可有效解决传统整体加热封接技术给真空玻璃带来的基板退钢化问题。本文基于激光封接技术,以Bi2O3-B2O3-ZnO(BiBZn)三元系统玻璃为研究对象,研究了Bi/Zn、B/Zn对BiBZn系统低熔点玻璃结构与性能的影响,得到了一种适用于激光封接真空玻璃的无铅低熔点玻璃粉。无铅低熔点玻璃组分为40.0Bi2O3-32.5B2O3-27.5ZnO,热膨胀系数为100×10-7 K-1(50~250 ℃),与钠钙硅基板玻璃热膨胀系数较匹配(92×10-7 K-1,50~250 ℃);玻璃软化温度为388 ℃,具有较好的流动性,适用于真空玻璃的激光封接。在激光功率为36 W、脉宽为20 ns的工艺条件下,封接层无晶体析出,封接强度为3.67 MPa,高于一般水平(2 MPa)。

关键词: Bi2O3-B2O3-ZnO (BiBZn), 低熔点玻璃, 无铅, 激光封接, 真空玻璃

Abstract:

Laser sealing technology is a high-precision, high-efficiency modern welding technique that offers the advantages of high energy density and the ability to locally heat the material. Applying laser sealing technology to vacuum glazing sealing can effectively reduce the substrate de-tempering of vaccum glazing caused by traditional overall heating sealing methods. This paper focused on the laser sealing technology and the glass of Bi2O3-B2O3-ZnO (BiBZn) system as the research subject. The paper explored the effects of Bi/Zn and B/Zn on the structure and properties of BiBZn system low-melting-point glass and developed a lead-free low-melting-point glass powder suitable for laser sealing of vacuum glazing. The lead-free low-melting-point glass components is 40.0Bi2O3-32.5B2O3-27.5ZnO, and the coefficient of thermal expansion is 100×10-7 K-1(50~250 ℃), which is well-matched with the coefficient of thermal expansion of sodium-calcium-silicon substrate glass (92×10-7 K-1, 50~250 ℃). The softening temperature of glass is 388 ℃, and it has good fluidity, making it suitable for laser sealing of vacuum glazing. Under the processing conditions of laser power of 36 W, pulse width of 20 ns, the obtained sealing layer has no crystal precipitation, and the sealing strength is 3.67 MPa, higher than the general level (2 MPa).

Key words: Bi2O3-B2O3-ZnO (BiBZn), low-melting-point glass, lead-free, laser sealing, vacuum glazing

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